# Copyright (c) 2009, Digital Enterprise Research Institute (DERI),
# NUI Galway
# All rights reserved.

# author: Cosmin Basca
# email: cosmin.basca@gmail.com

# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#    * Redistributions of source code must retain the above copyright
#      notice, this list of conditions and the following disclaimer.
#    * Redistributions in binary form must reproduce the above copyright
#      notice, this list of conditions and the following disclaimer
#      in the documentation and/or other materials provided with
#      the distribution.
#    * Neither the name of DERI nor the
#      names of its contributors may be used to endorse or promote
#      products derived from this software without specific prior
#      written permission.

# THIS SOFTWARE IS PROVIDED BY DERI ''AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DERI BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.

# -*- coding: utf-8 -*-
""" Module for SuRF exceptions. """

__author__ = ['Peteris Caune', 'Cosmin Basca']

# -----------------------------------------------------------------------------
#
# SuRF exceptions
#
# -----------------------------------------------------------------------------
class CardinalityException(Exception):
    """ Raised when list length != 1.   
    
    Subclasses of this exception are raised by 
    :meth:`surf.resource.result_proxy.ResultProxy.one()` and 
    :meth:`surf.resource.value.ResultValue.get_one()`. 
    
    """

    pass

class NoResultFound(CardinalityException):
    """ Raised when list length == 0. 

    This exception is raised by 
    :meth:`surf.resource.result_proxy.ResultProxy.one()` and 
    :meth:`surf.resource.value.ResultValue.get_one()`. 
    
    """

    pass

class MultipleResultsFound(CardinalityException):
    """ Raised when list length > 1.  
 
    This exception is raised by 
    :meth:`surf.resource.result_proxy.ResultProxy.one()` and 
    :meth:`surf.resource.value.ResultValue.get_one()`. 

    """

    pass


class PluginNotFoundException(Exception):
    """ Raised when the required Plugin is not found

    """
    pass